body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f8f8;
    color: #333;
    line-height: 1.6;
}
header {
    background-color: #1565c0;
    color: white;
    padding: 1rem 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 1rem;
}
nav ul li a {
    background-color: #1565c0;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: color 0.3s ease;
}
nav ul li a::after {
    content: "";
    position: absolute;
    height: 2px;
    width: 0%;
    background: white;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}
nav ul li a:hover::after {
    width: 100%;
}
section {
    padding: 2rem;
}
section h2 {
    text-align: center;
}
.product-row {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}
.product-item {
    display: flex;
    gap: 1rem;
    max-width: 600px;
    background-color: #ffffff;
    padding: 1rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    transition: box-shadow 0.3s ease;
}
.product-item:hover {
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}
.product-item img {
    width: 150px;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.product-item:hover img {
    transform: scale(1.05);
}
h1.main-title {
    text-align: center;
}
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
input[type="submit"] {
    background-color: #1565c0;
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
input[type="submit"]:hover {
    background-color: #0d47a1;
    transform: scale(1.05);
}
@media (min-width: 1024px) {
    .product-row {
        justify-content: center;
        flex-direction: row;
    }
    .product-item {
        flex-direction: row;
        text-align: left;
        max-width: 800px;
    }
    .product-item img {
        width: 180px;
    }
}